Firebase FCM silent push notifications for iOS

Question

I have a problem with silent notifications on iOS.

When my application is in background, I don\'t receive silent notification sent by FCM. But if I try to send direc

Answer 1

I was working on Firebase silent push notification using nodejs. When I tried below code its was working fine. When I was adding "priority": "high" and "content_available": true it was giving below error.

Worked below code

const admin = require('firebase-admin');
const serviceAccount ="...."; //service account path
admin.initializeApp({
  credential: admin.credential.cert(serviceAccount)
});

let  fcmToken = "...."; // Your token
let message ={
    "token": fcmToken,
    "data": {
        "updateApi": "activity"
    }
} 

admin.messaging().send(message)
  .then((response) =>{
    console.log('Successfully sent notification:', response);
})
  .catch((error) =>{
    console.log('Error while sending notification:', error);
});

Error when I added the priority and content_available in message object

{ code: 'messaging/invalid-argument',
     message: 'Invalid JSON payload received. Unknown name "priority" at \'message\': Cannot find field.\nInvalid JSON payload received. Unknown name "content_available" at \'message\': Cannot find field.' },
  codePrefix: 'messaging' }